using System;

using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Security;

namespace Org.BouncyCastle.Crypto.Parameters
{
	public class RsaKeyGenerationParameters
		: KeyGenerationParameters
	{
		private readonly BigInteger publicExponent;
		private readonly int certainty;

		public RsaKeyGenerationParameters(
			BigInteger		publicExponent,
			SecureRandom	random,
			int				strength,
			int				certainty)
			: base(random, strength)
		{
			this.publicExponent = publicExponent;
			this.certainty = certainty;
		}

		public BigInteger PublicExponent
		{
			get { return publicExponent; }
		}

		public int Certainty
		{
			get { return certainty; }
		}

		public override bool Equals(
			object obj)
		{
			RsaKeyGenerationParameters other = obj as RsaKeyGenerationParameters;

			if (other == null)
			{
				return false;
			}

			return certainty == other.certainty
				&& publicExponent.Equals(other.publicExponent);
		}

		public override int GetHashCode()
		{
			return certainty.GetHashCode() ^ publicExponent.GetHashCode();
		}
	}
}
